To use a linking table, start with your current measure and score it as you normally would in accordance with accepted scoring conventions. For example, for the SF-36
, you sum raw scores on a subset of items to produce a mental health score.
Find the instrument’s score on the appropriate PROsetta Stone table and its corresponding PROMIS
score. In some cases, the direction of scores between the two instruments is opposite (e.g., high scores are good on one instrument and bad on another instrument). You do not need to change the direction of scores – just use the tables as-is. It will provide the correct PROMIS score.
Note that each report (the link to the right of the table link) has a paragraph that clarifies the score direction of each instrument and what high/lower scores mean. Linking tables are located here>>